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Finding the Fourth Proportional to 372.98, 558.66 and 228.26

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Solution

The fourth proportional to 372.98, 558.66 and 228.26 is: 341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.98 : 558.66 = 228.26 : x
  2. Step 2: Convert to fraction form
    372.98/558.66 = 228.26/x
  3. Step 3: Cross multiply
    372.98x = 558.66 × 228.26
  4. Step 4: Simplify right side
    372.98x = 127,519.73
  5. Step 5: Solve for x
    x = 127,519.73/372.98
  6. Step 6: Final answer
    x = 341.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.